Backpack for portable beverage dispensers



FIG. 1 is an isometric view of a backpack for portable beverage dispensers showing my new design;

FIG. 2 is a right side elevation thereof;

FIG. 3 is a left side elevation thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a backpack for portable beverage dispensers, as shown and described. 